The ad features an animated rifle shooting down jobs and tax cuts for the Texas energy industry. The ad is part of an $800,000 television campaign in Texas.

“Pete Gallego and his extreme environmentalist allies have shot down jobs time and again,” CLF spokesman Zach Hunter said. “Texans know they just can’t afford to send Pete Gallego to Washington.”

The League of Conservation Voters, an environmental Super PAC, and the House Majority PAC, a Democratic Super PAC, launched an attack of their own against the incumbent, accusing Canseco of “not playing by the rules” while other Texans are working harder than ever.

Attacking both his career as a businessman and as a freshman congressman, the ad titled “Play by the Rules,” alleges that Canseco had deception lawsuits filed against him by small business owners and criticizes him for voting for tax breaks to millionaires.

“Instead of standing up for Texas families, Rep. Canseco’s career in Congress has been defined by his efforts to help millionaires like himself and companies that send American jobs overseas,” Navin Nayak, an LCV spokesman, said.

Both advertisements will run in the San Antonio market in English and Spanish during the week leading up to the election. The League of Conservation Voters also has a Spanish-language ad set to run in the El Pas market, criticizing Canseco for not believing in global warming.

Canseco and Gallego each benefitted greatly from independent expenditures in this race that experts say is a pure toss up.

Gallego has benefitted from more than $3.2 million in advertisements and media buys by independent expenditure groups, according to the Federal Election Commission. Canseco has benefitted from more than $2.5 million.

The League of Conservation Voters has given $996,447 to assist Gallego’s campaign, $615,946 for advertising and media, according to the FEC. The Democratic challenger also has received $448,435 in independent expenditures from the House Majority PAC, $444,610 for media expenses.

Canseco’s campaign has received more than $1 million in independent expenditures from the Congressional Leadership Fund, more than 90 percent of which went toward media expenses.